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EP0740568B1 - Device for medical external treatment by means of light - Google Patents

Device for medical external treatment by means of light Download PDF

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Publication number
EP0740568B1
EP0740568B1 EP95907187A EP95907187A EP0740568B1 EP 0740568 B1 EP0740568 B1 EP 0740568B1 EP 95907187 A EP95907187 A EP 95907187A EP 95907187 A EP95907187 A EP 95907187A EP 0740568 B1 EP0740568 B1 EP 0740568B1
Authority
EP
European Patent Office
Prior art keywords
light emitting
light
emitting element
emit
constructed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95907187A
Other languages
German (de)
French (fr)
Other versions
EP0740568A1 (en
Inventor
Rolf Thiberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Biolight Patent Holding AB
Original Assignee
Biolight Patent Holding AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from SE9400153A external-priority patent/SE504298C2/en
Application filed by Biolight Patent Holding AB filed Critical Biolight Patent Holding AB
Publication of EP0740568A1 publication Critical patent/EP0740568A1/en
Application granted granted Critical
Publication of EP0740568B1 publication Critical patent/EP0740568B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N5/0613—Apparatus adapted for a specific treatment
    • A61N5/0616—Skin treatment other than tanning
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N2005/0635—Radiation therapy using light characterised by the body area to be irradiated
    • A61N2005/0643—Applicators, probes irradiating specific body areas in close proximity
    • A61N2005/0644—Handheld applicators
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N2005/065—Light sources therefor
    • A61N2005/0651—Diodes
    • A61N2005/0652—Arrays of diodes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N2005/0658—Radiation therapy using light characterised by the wavelength of light used
    • A61N2005/0659—Radiation therapy using light characterised by the wavelength of light used infrared

Definitions

  • the present invention relates to a device for the external medicinal treatment with the aid of light, more specifically with light which will alleviate and/or cure different sickness conditions.
  • infrared light shall be combined with the emission of a red light, by emitting the different lights sequentially, one after the other. It has also been observed that the different lights shall be emitted in pulse form having certain pulse repetition frequencies.
  • a device of this kind can be used very successfully for treating other sicknesses, illnesses and injuries, such as injuries resulting from sporting activities, stretched muscles, myalgia, joint pains or arthalgia, headaches, different inflammatory conditions, different skin complaints, such as acne, back pains, etc., provided that the lights are emitted, or transmitted, in a given manner.
  • the light treatment has a favorable effect on the healing process of injuries, and will also ease and/or cure different sicknesses, illnesses.
  • the present invention is based on the understanding that light treatment effected by emitting a given light in a given frequency series will provide a significantly improved effect, by shortening the time taken to cure or ease an illness or sickness.
  • Figures 1 and 2 illustrate a device for healing wounds and sores with the aid of light, said device including a light emitting element 1 which is intended to be placed against or held close to the body of an individual.
  • the light emitting element is shown from one side in Figure 2 and from beneath in Figure 1.
  • This element includes a housing 5 which is provided with a transparent plate 6. Beneath the plate 6 there is located a surface 2 in which a number of light emitting diodes 3, 4 or corresponding devices are mounted.
  • the light emitting diodes are intended to transmit light through the plate 6 when activated, i.e. when supplied with current through a cable 7.
  • the housing 5 is held so that the plate 6 will lie against the part of the body to be treated.
  • the device also includes drive means 8, 9, 10 for driving the light emitting element 1.
  • the light emitting element 1 includes light emitting diodes 3 or like devices which are constructed to emit infrared light. These diodes are marked with solid circles in Figure 1.
  • the drive means 8, 9, 10 are constructed to cause the light emitting element 1 to emit infrared light in a first stage for a first predetermined length of time, and then to emit visible light in a second stage for a second predetermined length of time. Visible light is emitted by means of light emitting diodes 4 or like devices. These devices are marked with hollow circles in Figure 1. It is extremely important that the treatment is carried out in the order infrared light followed by visible light.
  • the drive means 8, 9, 10 are also constructed to cause the light emitting element 1 to pulsate the emitted infrared light and the visible light respectively in accordance with a predetermined series of pulse frequencies over the aforesaid predetermined time periods.
  • the drive means are also constructed to transmit two or more series of successively rising frequencies F1, F2, Fn, where F1 is a fundamental frequency and where F2, Fn are multiples of the fundamental frequency.
  • the fundamental frequency is 7.8 Hz.
  • the fundamental frequency is 8.6 Hz.
  • the drive means include a computer 8 and associated memory, and drive circuits 9, 10 which are controlled by the computer. These drive circuits 9,10 are supplied with voltage for powering the light emitting diodes, through conductors 11, 12.
  • One drive circuit, 9, is intended to activate the infrared light emitting diodes 3 and the other drive circuit 10, is intended to activate the light emitting diodes 4 that emit visible light.
  • the computer and the drive circuits are of a suitable known kind.
  • the infrared light emitting diodes 3 are preferably GaAs-type semi-conductors (Galliumarsenide) which emit light having a wavelength of 950 nanometers.
  • the light emitting diodes 4 which emit visible light are preferably of the GaAs-type which emit visible light.
  • the light emitting diodes are present in the light emitting element in such numbers that the infrared light emitting diodes together deliver a light power of 1800 milliwatts, while the visible light emitting diodes together have a power of 3000 millicandela.
  • these predetermined time periods are approximately of equal duration. Furthermore, the predetermined time period lies in a range of 2-4 minutes, preferably 3 minutes.
  • each series is comprised of three mutually sequential pulse frequencies F1, F2 and F3, by means of which respective light is emitted.
  • the predetermined time period is three minutes, infrared light is emitted over a period of three minutes, and is then followed by visible light over a period of three minutes.
  • the duration of each pulse frequency in the series is one minute.
  • the light emitting element 1 includes red light emitting diodes 4 which emit visible light at the wavelength of 660 nanometers.
  • the light emitting element 1 includes light emitting diodes 4 which are constructed to emit an essentially monochromatic visible light in one of the colors blue, yellow, orange or green.
  • the visible light that is used will depend on the sickness, illness or the nature of the injury to be treated.
  • the first series of pulse frequencies is 78 +/- 10 Hz, 702 +/- 20 Hz and 8.58 KHz +/- 100 Hz. This means that there is first pulsed the infrared light at a pulse frequency of 78 Hz, followed by a pulse frequency of 702 Hz and then a pulse frequency of 8.58 KHz, whereafter visible red light is emitted in accordance with the same series.
  • a typical treatment process is effected by turning the light emitting element to face the injured part of the body or that part which is relevant to the illness in question, and infrared light is emitted in accordance with the aforesaid series for a total period of three minutes, whereafter visible light is also emitted in accordance with said series for a total period of three minutes. Treatment thus takes six minutes. The treatment is repeated from two to three times each week. Typically, the effect of the treatment will be seen after 4-6 treatments.
  • the infrared light and the red light respectively are emitted in accordance with another pulse frequency series after from 4 to 6 treatments using the aforementioned series.
  • the drive means 8, 9, 10 is intended to cause the light emitting element 1 to emit a second series of pulse frequencies, this second pulse frequency series being, for instance, 15.6 +/- 3 Hz, 289 +/- 20 Hz and 31.2 +/- 5 Hz.
  • Each type of light is preferably emitted for a total period of three minutes also with this second pulse frequency series.
  • pulse frequency series have been mentioned in which the pulse frequency is given a relatively narrow interval. It is namely important that the pulse frequency is the nominal frequency or very close thereto.
  • the aforesaid predetermined time periods can be varied slightly.
  • a keyboard 13 Connected to the computer 8 is a keyboard 13 by means of which relevant series and the duration of said series can be chosen by depressing the appropriate keys. There will preferably be found a number of different preprogrammed treatment programs to choose from.
  • a display 14 To the computer 8 there is also connected to a display 14 which presents desired data, such as the treatment program chosen, the time duration of the series, etc..
  • the construction of the light emitting element can be changed, and that the number and the power of the light emitting diodes can also be changed.
  • the control circuit that includes the computer can also be modified.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pathology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biophysics (AREA)
  • Radiation-Therapy Devices (AREA)
  • Laser Surgery Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Endoscopes (AREA)

Abstract

PCT No. PCT/SE95/00049 Sec. 371 Date Jul. 18, 1996 Sec. 102(e) Date Jul. 18, 1996 PCT Filed Jan. 19, 1995 PCT Pub. No. WO95/19810 PCT Pub. Date Jul. 27, 1995A device for the external medical treatment with the aid of light, including a light emitting element which is intended to lie against or be held close to a wound or sore on the body of an individual, and a drive arrangement for driving the light emitting element, wherein the light emitting element includes light emitting diodes or like devices and is constructed to emit infrared light. The arrangement (8, 9, 19) is constructed to cause the light emitting element (1) to emit infrared light in a first stage for a first predetermined length of time and thereafter to emit visible light in a second stage for a second predetermined length of time. The drive arrangement (8, 9, 10) is also constructed to cause the light emitting element (1) to pulsate the emitted infrared light and the emitted visible light respectively in accordance with a predetermined series of pulse frequencies over the predetermined time periods. The drive arrangement is constructed to emit two or more series having successively rising frequencies F1, F2, Fn, where F1 is a fundamental frequency and where F2, Fn are multiples of the fundamental frequency.

Description

  • The present invention relates to a device for the external medicinal treatment with the aid of light, more specifically with light which will alleviate and/or cure different sickness conditions.
  • It has been observed that infrared light has a beneficial effect.
  • Document US-A-4 930 504 discloses a device according to the preamble of claim 1.
  • It has thus been observed that infrared light shall be combined with the emission of a red light, by emitting the different lights sequentially, one after the other. It has also been observed that the different lights shall be emitted in pulse form having certain pulse repetition frequencies.
  • It has now been found that a device of this kind can be used very successfully for treating other sicknesses, illnesses and injuries, such as injuries resulting from sporting activities, stretched muscles, myalgia, joint pains or arthalgia, headaches, different inflammatory conditions, different skin complaints, such as acne, back pains, etc., provided that the lights are emitted, or transmitted, in a given manner. In this regard, the light treatment has a favorable effect on the healing process of injuries, and will also ease and/or cure different sicknesses, illnesses.
  • The present invention is based on the understanding that light treatment effected by emitting a given light in a given frequency series will provide a significantly improved effect, by shortening the time taken to cure or ease an illness or sickness.
  • The present invention thus relates to a device as defined in claim 1. The invention will now be described in more detail, partly with reference to an exemplifying embodiment of the invention illustrated in the accompanying drawing, in which Figure 1 is a block schematic illustrating the device, and Figure 2 is a side view of a light emitting element.
  • Figures 1 and 2 illustrate a device for healing wounds and sores with the aid of light, said device including a light emitting element 1 which is intended to be placed against or held close to the body of an individual. The light emitting element is shown from one side in Figure 2 and from beneath in Figure 1. This element includes a housing 5 which is provided with a transparent plate 6. Beneath the plate 6 there is located a surface 2 in which a number of light emitting diodes 3, 4 or corresponding devices are mounted. Thus, the light emitting diodes are intended to transmit light through the plate 6 when activated, i.e. when supplied with current through a cable 7. In use, the housing 5 is held so that the plate 6 will lie against the part of the body to be treated. The device also includes drive means 8, 9, 10 for driving the light emitting element 1. The light emitting element 1 includes light emitting diodes 3 or like devices which are constructed to emit infrared light. These diodes are marked with solid circles in Figure 1.
  • The drive means 8, 9, 10 are constructed to cause the light emitting element 1 to emit infrared light in a first stage for a first predetermined length of time, and then to emit visible light in a second stage for a second predetermined length of time. Visible light is emitted by means of light emitting diodes 4 or like devices. These devices are marked with hollow circles in Figure 1. It is extremely important that the treatment is carried out in the order infrared light followed by visible light.
  • According to the present invention, the drive means 8, 9, 10 are also constructed to cause the light emitting element 1 to pulsate the emitted infrared light and the visible light respectively in accordance with a predetermined series of pulse frequencies over the aforesaid predetermined time periods.
  • According to the present invention, the drive means are also constructed to transmit two or more series of successively rising frequencies F1, F2, Fn, where F1 is a fundamental frequency and where F2, Fn are multiples of the fundamental frequency.
  • According to a much preferred embodiment, the fundamental frequency is 7.8 Hz.
  • According to another highly preferred embodiment, the fundamental frequency is 8.6 Hz.
  • The drive means include a computer 8 and associated memory, and drive circuits 9, 10 which are controlled by the computer. These drive circuits 9,10 are supplied with voltage for powering the light emitting diodes, through conductors 11, 12. One drive circuit, 9, is intended to activate the infrared light emitting diodes 3 and the other drive circuit 10, is intended to activate the light emitting diodes 4 that emit visible light. The computer and the drive circuits are of a suitable known kind.
  • The infrared light emitting diodes 3 are preferably GaAs-type semi-conductors (Galliumarsenide) which emit light having a wavelength of 950 nanometers. The light emitting diodes 4 which emit visible light are preferably of the GaAs-type which emit visible light.
  • According to one preferred embodiment of the invention, the light emitting diodes are present in the light emitting element in such numbers that the infrared light emitting diodes together deliver a light power of 1800 milliwatts, while the visible light emitting diodes together have a power of 3000 millicandela.
  • Mention is made in the aforegoing of predetermined lengths of times over which light is emitted at a treatment. According to one preferred embodiment, these predetermined time periods are approximately of equal duration. Furthermore, the predetermined time period lies in a range of 2-4 minutes, preferably 3 minutes.
  • Mention is made in the aforegoing of a series of pulse frequencies. According to one preferred embodiment, each series is comprised of three mutually sequential pulse frequencies F1, F2 and F3, by means of which respective light is emitted.
  • In summary, this means that there is first emitted solely infrared light, said light being emitted so as to be pulsed in a manner such that there is first emitted light which is pulsed at a given pulse frequency, whereafter the light is emitted while pulsed at a second pulse frequency, and then at a third pulse frequency. Thereafter there is emitted only visible light, this light being pulsed at a first pulse frequency and then at a second pulse frequency and thereafter at a third pulse frequency.
  • Provided that the predetermined time period is three minutes, infrared light is emitted over a period of three minutes, and is then followed by visible light over a period of three minutes. Preferably, the duration of each pulse frequency in the series is one minute.
  • According to one highly preferred embodiment, the light emitting element 1 includes red light emitting diodes 4 which emit visible light at the wavelength of 660 nanometers.
  • According to another preferred embodiment, the light emitting element 1 includes light emitting diodes 4 which are constructed to emit an essentially monochromatic visible light in one of the colors blue, yellow, orange or green.
  • The visible light that is used will depend on the sickness, illness or the nature of the injury to be treated.
  • According to another preferred embodiment of the invention, the first series of pulse frequencies is 78 +/- 10 Hz, 702 +/- 20 Hz and 8.58 KHz +/- 100 Hz. This means that there is first pulsed the infrared light at a pulse frequency of 78 Hz, followed by a pulse frequency of 702 Hz and then a pulse frequency of 8.58 KHz, whereafter visible red light is emitted in accordance with the same series.
  • A typical treatment process is effected by turning the light emitting element to face the injured part of the body or that part which is relevant to the illness in question, and infrared light is emitted in accordance with the aforesaid series for a total period of three minutes, whereafter visible light is also emitted in accordance with said series for a total period of three minutes. Treatment thus takes six minutes. The treatment is repeated from two to three times each week. Typically, the effect of the treatment will be seen after 4-6 treatments.
  • According to one preferred embodiment, the infrared light and the red light respectively are emitted in accordance with another pulse frequency series after from 4 to 6 treatments using the aforementioned series. According to this embodiment, the drive means 8, 9, 10 is intended to cause the light emitting element 1 to emit a second series of pulse frequencies, this second pulse frequency series being, for instance, 15.6 +/- 3 Hz, 289 +/- 20 Hz and 31.2 +/- 5 Hz. Each type of light is preferably emitted for a total period of three minutes also with this second pulse frequency series.
  • In the aforegoing, pulse frequency series have been mentioned in which the pulse frequency is given a relatively narrow interval. It is namely important that the pulse frequency is the nominal frequency or very close thereto. However, the aforesaid predetermined time periods can be varied slightly.
  • Connected to the computer 8 is a keyboard 13 by means of which relevant series and the duration of said series can be chosen by depressing the appropriate keys. There will preferably be found a number of different preprogrammed treatment programs to choose from. To the computer 8 there is also connected to a display 14 which presents desired data, such as the treatment program chosen, the time duration of the series, etc..
  • It will be understood that the construction of the light emitting element can be changed, and that the number and the power of the light emitting diodes can also be changed. The control circuit that includes the computer can also be modified.
  • The present invention cannot therefore be considered restricted to the aforedescribed exemplifying embodiments, since the variations and modifications can be made within the scope of the following claims.

Claims (10)

  1. A device for the external medical treatment of a patient with the aid of light, including a light emitting element (1) which is intended to lie against or be held close to a wound or sore on the body of an individual, and drive means (8, 9, 10) for driving the light emitting element (1), wherein the light emitting element (1) includes light emitting diodes (3, 4) and is constructed to emit visible and infrared light, the drive means (8, 9, 10) being constructed to cause the light emitting element (1) to emit infrared light in a first stage for a first predetermined length of time and thereafter to emit visible light in a second stage for a second predetermined length of time, the drive means (8, 9, 10) being constructed to cause the light emitting element (1) to pulsate the emitted infrared light and the emitted visible light respectively in accordance with predetermined series of pulse frequencies over said time periods; characterized in that the drive means (8, 9, 10) is constructed to emit two or more series having successively rising frequencies F1, F2, Fn, where F1 is a fundamental frequency and where F2, Fn are multiples of the fundamental frequency.
  2. An arrangement according to Claim 1, characterized in that the fundamental frequency is 7.8 Hz.
  3. An arrangement according to Claim 1, characterized in that the fundamental frequency is 8.6 Hz.
  4. An arrangement according to Claim 1, 2 or 3, characterized in that the predetermined time periods are approximately of mutually equal duration; and in that the time period lies in a range of 2-4 minutes, preferably 3 minutes.
  5. An arrangement according to Claim 1, 2, 3 or 4, characterized in that each of said series is comprised of three mutually sequential pulse frequencies at which a respective light is emitted.
  6. An arrangement according to claim 1, characterized in that a first series of pulse frequencies is 78 +/- 10 Hz, 702 +/- 20 Hz and 8.58 KHz +/- 100 Hz.
  7. An arrangement according to any one of the preceding claims, characterized in that the light emitting element (1) includes infrared light emitting diodes (3) which emit light having a wavelength of 950 nanometers.
  8. An arrangement according to any one of the preceding claims, characterized in that the light emitting element (1) includes red light emitting diodes (4) which emit light having a wavelength of 660 nanometers.
  9. An arrangement according to Claim 7 or Claim 8, characterized in that the infrared light emitting diodes (3) together produce a light power of 1800 milliwatts and the red light emitting diodes (4) together produce a power of 3000 millicandela.
  10. An arrangement according to any one of Claims 1-7, characterized in that the light emitting element (1) includes light emitting diodes (4) which are constructed to emit an essentially monochromatic visible light in one of the colors blue, yellow, orange or green.
EP95907187A 1994-01-20 1995-01-19 Device for medical external treatment by means of light Expired - Lifetime EP0740568B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
SE9400153A SE504298C2 (en) 1994-01-20 1994-01-20 Device for wound healing by light
SE9400153 1994-01-20
SE9402679A SE502784C2 (en) 1994-01-20 1994-08-10 Device for medical treatment is externalized by light
SE9402679 1994-08-10
PCT/SE1995/000049 WO1995019810A1 (en) 1994-01-20 1995-01-19 Device for medical external treatment by means of light

Publications (2)

Publication Number Publication Date
EP0740568A1 EP0740568A1 (en) 1996-11-06
EP0740568B1 true EP0740568B1 (en) 2002-04-17

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ID=26661934

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95907187A Expired - Lifetime EP0740568B1 (en) 1994-01-20 1995-01-19 Device for medical external treatment by means of light

Country Status (13)

Country Link
US (1) US5800479A (en)
EP (1) EP0740568B1 (en)
JP (1) JPH09508032A (en)
CN (1) CN1064853C (en)
AT (1) ATE216275T1 (en)
AU (1) AU1549595A (en)
CA (1) CA2181345C (en)
DE (1) DE69526426T2 (en)
DK (1) DK0740568T3 (en)
ES (1) ES2174925T3 (en)
PT (1) PT740568E (en)
SE (1) SE502784C2 (en)
WO (1) WO1995019810A1 (en)

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JPH09508032A (en) 1997-08-19
EP0740568A1 (en) 1996-11-06
SE502784C2 (en) 1996-01-15
ATE216275T1 (en) 2002-05-15
SE9402679D0 (en) 1994-08-10
ES2174925T3 (en) 2002-11-16
DK0740568T3 (en) 2002-08-12
AU1549595A (en) 1995-08-08
WO1995019810A1 (en) 1995-07-27
SE9402679L (en) 1995-07-21
CA2181345C (en) 2001-05-29
CN1064853C (en) 2001-04-25
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CN1138830A (en) 1996-12-25
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US5800479A (en) 1998-09-01
DE69526426D1 (en) 2002-05-23
PT740568E (en) 2002-09-30

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